Analysis

  • max time kernel
    99s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240910-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-09-2024 11:18

General

  • Target

    2024-09-22_ef8b996e4d7e84c179f8268f3d686195_darkside.exe

  • Size

    146KB

  • MD5

    ef8b996e4d7e84c179f8268f3d686195

  • SHA1

    07057ff4fd122bca513bbce0cbaa1174d50caf01

  • SHA256

    d582110cd8a31d867e1a1eada4fb726acbbf960bed0aafeec854e455bc53403f

  • SHA512

    6c434febdbf2e57328a118d249d3a8ed736749671b605c9baabecbcafc4040ab10f0c0ce94f6f2551286fc213b4f88a6079271ff4971f524a36211b25f70b90b

  • SSDEEP

    3072:gqJogYkcSNm9V7DXW5I4KNGHsOqhNDvtdT:gq2kc4m9tDXW5fdqh

Malware Config

Signatures

  • Renames multiple (593) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops desktop.ini file(s) 2 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • Drops file in System32 directory 4 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 13 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-22_ef8b996e4d7e84c179f8268f3d686195_darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-22_ef8b996e4d7e84c179f8268f3d686195_darkside.exe"
    1⤵
    • Drops desktop.ini file(s)
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1036
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:2660
    • C:\ProgramData\357.tmp
      "C:\ProgramData\357.tmp"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:212
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\357.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1512
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:3488
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:628
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{CA792481-376B-43F8-8B56-8D88769936BF}.xps" 133714775176000000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of SetWindowsHookEx
        PID:208

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\$Recycle.Bin\S-1-5-21-2629364133-3182087385-364449604-1000\LLLLLLLLLLL

      Filesize

      129B

      MD5

      2508d96bca7324db3c9fcd29a5498d43

      SHA1

      870d918f9f3ab2cc1251f90edbf6e696c1db7c0d

      SHA256

      ae9536060ad393536b8cc7466d7e1e91cabf93d3710f03a5cb6d3afacdf12953

      SHA512

      e1f19bc2d433d1e3a2fd55ea196d0fe7ed3be5c2e36a973d071de69d67a682e7e9bdf36b2af833f7599c8f28b134d1c13d465b28c040407917db9df380064a13

    • C:\ProgramData\357.tmp

      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

    • C:\Users\Admin\AppData\Local\Temp\EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

      Filesize

      146KB

      MD5

      0ad5c83636c60f468455de96b21ba1b5

      SHA1

      ec75ed20af7b80d1643785152ec5c57de102bd43

      SHA256

      b46d6f07e9989a979f6119ecdcdf5aa7bc05a5348a1d07f41f0b23e7384b78a7

      SHA512

      764fc00abd44c4e306d4aa8ca9853a180f0b71727756cdcfd2bf8792732d61679e3ac168881f3cf5633ce78b0d637a4fdf1475f0a4395236528e54f42bc66854

    • C:\Users\Admin\AppData\Local\Temp\{2C47496F-BA12-42D3-AFAF-592A81972DE9}

      Filesize

      4KB

      MD5

      ff16a6871d3e697a9ecc9edf8a95a975

      SHA1

      1363db83aa5468645aa6d0ac6d3e634b119b0c4d

      SHA256

      57044fd393af8b8c6b3337755355b89cb9162a443a32e7455f76ff090b807eb4

      SHA512

      ff39d4327bfa5d5b6705bfedfc60fe995c36208e5dd99c7aa4412029cbd714227cddde84deb85ffa24d23d6da75dca63f7a49a8d3f4a94f19756a6c51f8e6a7f

    • C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2

      Filesize

      4KB

      MD5

      4c9c5659024779abf71996c329a63482

      SHA1

      c04b4f6201f8c3eebe28b009ed6ed31337d1c493

      SHA256

      adcb34c1e13667ab786135ad87f5560ed7bedda5d18c0ee0890524e610d78577

      SHA512

      6c117a134fd94a49801ecc5f2ef8596c9a568ae7fc6f21160996728e5205c7889890eaef0f64f7d2ac78f92c92e0287810e9d449627b4299a4c40d92edbf0b8e

    • C:\iFnyJHFpx.README.txt

      Filesize

      638B

      MD5

      e5bc1b8f423f3cce04388bfbe53d93ff

      SHA1

      54e173bb949842e15150102631a2fd8c7fc0d967

      SHA256

      7c750178e9525b4eef587eed36c7040a4806207909e4463a56f33073081b7de5

      SHA512

      aa720ad06776f38ce63d67b743ee019bef1130874a52d7825559e559a056e2ed5c543290a1c13e6ea733204791865ba17f9d4b1d0650e64db1f89af0da7b693f

    • F:\$RECYCLE.BIN\S-1-5-21-2629364133-3182087385-364449604-1000\DDDDDDDDDDD

      Filesize

      129B

      MD5

      ab72e0b5497ceb8e304ee72f64741c26

      SHA1

      f4d5517aedc5a24e5a89a7ed0a29289308c74c58

      SHA256

      18050ae9cb450b3bd15ca838bb870f83d7dd52b0cfed041d9a9bf11ab9e28414

      SHA512

      9ce7ef67170541e61c5ffe8de906f32fe8c958ebfc01f90420d52903ecf1d39c16f8eb1b7a52f1b07fd663878d30eb5e493e5676b32fe812349a9d3ad62a7e29

    • memory/208-2908-0x00007FFB20A90000-0x00007FFB20AA0000-memory.dmp

      Filesize

      64KB

    • memory/208-2904-0x00007FFB20A90000-0x00007FFB20AA0000-memory.dmp

      Filesize

      64KB

    • memory/208-2907-0x00007FFB20A90000-0x00007FFB20AA0000-memory.dmp

      Filesize

      64KB

    • memory/208-2909-0x00007FFB20A90000-0x00007FFB20AA0000-memory.dmp

      Filesize

      64KB

    • memory/208-2906-0x00007FFB20A90000-0x00007FFB20AA0000-memory.dmp

      Filesize

      64KB

    • memory/208-2929-0x00007FFB1E770000-0x00007FFB1E780000-memory.dmp

      Filesize

      64KB

    • memory/208-2930-0x00007FFB1E770000-0x00007FFB1E780000-memory.dmp

      Filesize

      64KB

    • memory/1036-2881-0x0000000002D10000-0x0000000002D20000-memory.dmp

      Filesize

      64KB

    • memory/1036-2880-0x0000000002D10000-0x0000000002D20000-memory.dmp

      Filesize

      64KB

    • memory/1036-2879-0x0000000002D10000-0x0000000002D20000-memory.dmp

      Filesize

      64KB

    • memory/1036-2-0x0000000002D10000-0x0000000002D20000-memory.dmp

      Filesize

      64KB

    • memory/1036-0-0x0000000002D10000-0x0000000002D20000-memory.dmp

      Filesize

      64KB

    • memory/1036-1-0x0000000002D10000-0x0000000002D20000-memory.dmp

      Filesize

      64KB